#include<iostream>
using namespace std;
template<class T1,class T2>
class Pair
{
	public:
		T1 key;
		T2 value;
		Pair(T1 k,T2 v):key(k),value(v){}
		bool operator<(const Pair<T1,T2>&p)const;
};
template<class T1,class T2>
bool Pair <T1,T2>::operator<(const Pair<T1,T2>&p)const
{
	return key <p.key;
}
int main()
{
	Pair<string ,int >student("Tom",19);
	cout<<student.key<<" "<<student.value;
	return 0;
}